Thanks to Haim Vaknin and Efraim Eller we found out that the Paper/Plate
On Disposal Detector need to be close since it might give fault errors.
Using the Regedit go to the Lotem 400/IO
OBJECTS/LOADER/DETECTORS/Paper/Plate On Disposal Detector change the Open to "0".
Centering Problem:
During Centering If the plate is touching one of the centering pins and the
Ground than the centering motor speed changes to speed define in the parameter:
"Centering Speed Value For Secound detector" (under Loader/DC motor/Centering
Motor) By default this parameter is set to 0. Please change this parameter
to 15.